What is idr frame h264

Tech Community Register Log in. FaceBook Share. Write My Article. Download article as html. Load Comments. If you analyse a stream, how can you tell if a frame is an I frame or an IDR frame? I have Elecard, and other analyzer.

Not worked out how to do this as yet. Hi… when you are looking at the IDR frame, the number reference buffer would be kept to null which is not the case with I frame. You are commenting using your WordPress. You are commenting using your Google account. Multiple cores can be used for processing larger size or higher frame rate images. In addition, the standard core can be customized, retaining ITAR compliance, to meet unique functional needs.

Click here to download the data sheet: Download Data Sheet. The Data Sheet contains more details on functionality and deliverables. Or, you can contact the sales person in your area to learn more. Both I and IDR frames are predicted using intra-frame. They are all the same thing , in the encoding and decoding for convenience, the first I-frame and other I-frame differences, so the first I frame is called IDR, so it is convenient to control the encoding and decoding process.

While I-frames do not have the ability to randomly access, this feature is assumed by IDR. A sequence can have a lot of I images, I image after the image can refer to I image between the image to do motion reference.

There can be a lot of I images in a sequence, and the image after I image can refer to the images between I images for motion reference. From a randomly accessed video stream, the player can always play from an IDR frame , since there is no frame after it referencing the frame before it.